Generate Hash to MANIFEST.MF

gistfile1.txt

FileStream fs = new FileStream(@"/index-v1.json", FileMode.Open);
using (BinaryReader s = new BinaryReader(fs))
{
    byte[] bytes = new byte[50 * 1024];

    string hashBase64 = ParseToSha1(bytes);
    Debug.WriteLine("index-v1.json: " + hashBase64);
}

//Or by text
StringBuilder sb = new StringBuilder();
sb.Append("Name: index-v1.json");
sb.Append(Environment.NewLine);
sb.Append("SHA1-Digest: +nfT/Wz3YmkX+lNO5MHJ1LM01oQ=");
sb.Append(Environment.NewLine);
sb.Append(Environment.NewLine);
Debug.WriteLine("Line 7 FDROID-3.SF: " + ParseToSha1(Encoding.ASCII.GetBytes(sb.ToString())));